math: add nextafter*, nextoward* and scalb to gen

[libc-test] / src / math / nextafterl.c

diff --git a/src/math/nextafterl.c b/src/math/nextafterl.c
index d5eb6cf..2e9fc06 100644 (file)
--- a/src/math/nextafterl.c
+++ b/src/math/nextafterl.c
@@ -1,88 +1,47 @@
-#include <math.h>
 #include <stdint.h>
-#include <fenv.h>
 #include <stdio.h>
-#include <float.h>
-#include <string.h>
-#include "fenvutil.h"
-#include "test.h"
+#include "util.h"
 
-/* ld80 only */
+static struct ll_l t[] = {
+#if LDBL_MANT_DIG == 53
+#include "sanity/nextafter.h"
 
-static struct {
-       long double x;
-       long double y;
-       long double z;
-       int except;
-} t[] = {
-           0,         0,                            0, 0,
-           0,      -0.0,                         -0.0, 0,
-        -0.0,         0,                            0, 0,
-           0,         1,                  0x1p-16445L, FE_INEXACT|FE_UNDERFLOW,
-           0,        -1,                 -0x1p-16445L, FE_INEXACT|FE_UNDERFLOW,
-        -0.0,         1,                  0x1p-16445L, FE_INEXACT|FE_UNDERFLOW,
-        -0.0,        -1,                 -0x1p-16445L, FE_INEXACT|FE_UNDERFLOW,
- 0x1p-16445L,  INFINITY,                  0x1p-16444L, FE_INEXACT|FE_UNDERFLOW,
- 0x1p-16445L, -INFINITY,                            0, FE_INEXACT|FE_UNDERFLOW,
--0x1p-16445L,  INFINITY,                         -0.0, FE_INEXACT|FE_UNDERFLOW,
--0x1p-16445L, -INFINITY,                 -0x1p-16444L, FE_INEXACT|FE_UNDERFLOW,
- 0x1p-16440L, -0x1p-16444L,             0x1.fp-16441L, FE_INEXACT|FE_UNDERFLOW,
- 0x1p-16440L,  0x1p-16444L,             0x1.fp-16441L, FE_INEXACT|FE_UNDERFLOW,
- 0x1p-16440L,  0x1p-16430L,            0x1.08p-16440L, FE_INEXACT|FE_UNDERFLOW,
-    LDBL_MIN,         0, 0x1.fffffffffffffffcp-16383L, FE_INEXACT|FE_UNDERFLOW,
-   -LDBL_MIN,         0,-0x1.fffffffffffffffcp-16383L, FE_INEXACT|FE_UNDERFLOW,
- 0x1.fffffffffffffffcp-16383L,  1,           LDBL_MIN, 0,
--0x1.fffffffffffffffcp-16383L, -1,          -LDBL_MIN, 0,
-           1,         2,     0x1.0000000000000002p+0L, 0,
-           1,        -2,     0x1.fffffffffffffffep-1L, 0,
-           1,       0.5,     0x1.fffffffffffffffep-1L, 0,
-    0x1p1023,  0x1p1000,  0x1.fffffffffffffffep+1022L, 0,
-    0x1p1023,  INFINITY,  0x1.0000000000000002p+1023L, 0,
-        -1.5,      -2.5,    -0x1.8000000000000002p+0L, 0,
-        -1.5,       2.5,    -0x1.7ffffffffffffffep+0L, 0,
-         1.5,      -2.5,     0x1.7ffffffffffffffep+0L, 0,
-    LDBL_MAX,  INFINITY,                     INFINITY, FE_INEXACT|FE_OVERFLOW,
-    INFINITY,  INFINITY,                     INFINITY, 0,
-   -LDBL_MAX, -INFINITY,                    -INFINITY, FE_INEXACT|FE_OVERFLOW,
-   -INFINITY, -INFINITY,                    -INFINITY, 0,
-         NAN,         1,                          NAN, 0,
-           1,       NAN,                          NAN, 0,
+#elif LDBL_MANT_DIG == 64
+#include "sanity/nextafterl.h"
+
+#endif
 };
 
-void test_nextafterl()
+int main(void)
 {
-       int f, i;
-       long double z;
+       #pragma STDC FENV_ACCESS ON
+       long double y;
+       float d;
+       int e, i, err = 0;
+       struct ll_l *p;
 
        for (i = 0; i < sizeof t/sizeof *t; i++) {
-               feclearexcept(FE_ALL_EXCEPT);
-               z = nextafterl(t[i].x, t[i].y);
-               f = fetestexcept(FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW|FE_UNDERFLOW|FE_INEXACT);
+               p = t + i;
 
-               if (z != t[i].z && !(isnan(z) && isnan(t[i].z)))
-                       error("%d nextafterl(%La, %La) want %La got %La\n", i, t[i].x, t[i].y, t[i].z, z);
-               if (f != t[i].except)
-                       error("%d nextafterl(%La, %La)==%La want except=%s got except=%s\n",
-                               i, t[i].x, t[i].y, t[i].z, strdup(strexcept(t[i].except)), strdup(strexcept(f)));
-       }
-}
-
-void bench_nextafterl_normal(int N)
-{
-       int i;
-       volatile long double z;
-
-       for (i = 0; i < N; i++) {
-               z = nextafterl(1.25, 4);
-       }
-}
-
-void bench_nextafterl_subnormal(int N)
-{
-       int i;
-       volatile long double z;
-
-       for (i = 0; i < N; i++) {
-               z = nextafterl(0x1p-16440L, -0x1p-16444L);
+               if (p->r < 0)
+                       continue;
+               fesetround(p->r);
+               feclearexcept(FE_ALL_EXCEPT);
+               y = nextafterl(p->x, p->x2);
+               e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
+
+               if (!checkexcept(e, p->e, p->r)) {
+                       printf("%s:%d: bad fp exception: %s nextafterl(%La,%La)=%La, want %s",
+                               p->file, p->line, rstr(p->r), p->x, p->x2, p->y, estr(p->e));
+                       printf(" got %s\n", estr(e));
+                       err++;
+               }
+               d = ulperrl(y, p->y, p->dy);
+               if (!checkulp(d, p->r)) {
+                       printf("%s:%d: %s nextafterl(%La,%La) want %La got %La ulperr %.3f = %a + %a\n",
+                               p->file, p->line, rstr(p->r), p->x, p->x2, p->y, y, d, d-p->dy, p->dy);
+                       err++;
+               }
        }
+       return !!err;
 }